The PNG Guide is an eBook based on Greg Roelofs' book, originally published by O'Reilly.

Source Code

All of the source files for the wpng demo program (wpng.c, writepng.c, writepng.h, and makefiles) are available on the Web, under a BSD-like Open Source license. The files will be available for download from the following URL for the foreseeable future:

Bug fixes, new features and ports, and other contributions may be integrated into the code, time permitting.

Last Update: 2010-Nov-26